add warning when recent comic does not exist

forms/not_found_dialog.ui

@@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>NotFoundDialog</class>
+ <widget class="QDialog" name="NotFoundDialog">
+  <property name="windowModality">
+   <enum>Qt::ApplicationModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>506</width>
+    <height>363</height>
+   </rect>
+  </property>
+  <property name="sizePolicy">
+   <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+    <horstretch>0</horstretch>
+    <verstretch>0</verstretch>
+   </sizepolicy>
+  </property>
+  <property name="windowTitle">
+   <string>File not found</string>
+  </property>
+  <property name="windowIcon">
+   <iconset resource="../data/main_window_view.qrc">
+    <normaloff>:/others/pynocchio.png</normaloff>:/others/pynocchio.png</iconset>
+  </property>
+  <property name="locale">
+   <locale language="English" country="UnitedStates"/>
+  </property>
+  <property name="modal">
+   <bool>true</bool>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QLabel" name="not_found_text_label">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="text">
+      <string>The file was not found</string>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignCenter</set>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QPushButton" name="button_close">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string>Close</string>
+       </property>
+       <property name="icon">
+        <iconset>
+         <normaloff>:/icons/icons/edit-delete.svg</normaloff>:/icons/icons/edit-delete.svg</iconset>
+       </property>
+       <property name="default">
+        <bool>true</bool>
+       </property>
+       <property name="flat">
+        <bool>false</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="../data/main_window_view.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>button_close</sender>
+   <signal>clicked()</signal>
+   <receiver>NotFoundDialog</receiver>
+   <slot>close()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>271</x>
+     <y>337</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>271</x>
+     <y>180</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

pynocchio.pro

@@ -1,6 +1,6 @@
 SOURCES = pynocchio/main_window_view.py pynocchio/bookmark_manager_dialog.py pynocchio/go_to_page_dialog.py pynocchio/preference_dialog.py pynocchio/uic_files/custom_widgets/status_bar.py
 
-FORMS = forms/about_dialog.ui forms/bookmark_manager_dialog.ui forms/go_to_page_dialog.ui forms/preference_dialog.ui forms/main_window_view.ui
+FORMS = forms/about_dialog.ui forms/not_found_dialog.ui forms/bookmark_manager_dialog.ui forms/go_to_page_dialog.ui forms/preference_dialog.ui forms/main_window_view.ui
 
 TRANSLATIONS = en-US.ts es.ts fi-FI.ts fr-FR.ts nl-NL.ts pl-PL.ts pt-BR.ts pt-PT.ts tr-TR.ts
 

pynocchio/main_window_view.py

@@ -12,6 +12,7 @@
 from .bookmark_manager_dialog import BookmarkManagerDialog
 from .bookmark import TemporaryBookmark
 from .about_dialog import AboutDialog
+from .not_found_dialog import NotFoundDialog
 from .uic_files import main_window_view_ui
 
 logging.basicConfig(level=logging.INFO)
@@ -421,6 +422,9 @@ def open_recent_file(self):
                 files.remove(filename)
                 self.model.save_recent_files(files)
                 self.update_recent_file_actions()
+                not_found_dialog = NotFoundDialog(self)
+                not_found_dialog.show()
+                not_found_dialog.exec_()
 
     def set_current_file(self, filename):
 

pynocchio/not_found_dialog.py

@@ -0,0 +1,12 @@
+# -*- coding: utf-8 -*-
+
+from PyQt5 import QtWidgets
+from .uic_files import not_found_dialog_ui
+
+
+class NotFoundDialog(QtWidgets.QDialog):
+
+    def __init__(self, parent=None):
+        super(NotFoundDialog, self).__init__(parent=parent)
+        self.ui = not_found_dialog_ui.Ui_NotFoundDialog()
+        self.ui.setupUi(self)

pynocchio/uic_files/not_found_dialog_ui.py

@@ -0,0 +1,64 @@
+# -*- coding: utf-8 -*-
+
+# Form implementation generated from reading ui file 'forms/not_found_dialog.ui'
+#
+# Created by: PyQt5 UI code generator 5.11.2
+#
+# WARNING! All changes made in this file will be lost!
+
+from PyQt5 import QtCore, QtGui, QtWidgets
+
+class Ui_NotFoundDialog(object):
+    def setupUi(self, NotFoundDialog):
+        NotFoundDialog.setObjectName("NotFoundDialog")
+        NotFoundDialog.setWindowModality(QtCore.Qt.ApplicationModal)
+        NotFoundDialog.resize(506, 363)
+        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.Preferred)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(NotFoundDialog.sizePolicy().hasHeightForWidth())
+        NotFoundDialog.setSizePolicy(sizePolicy)
+        icon = QtGui.QIcon()
+        icon.addPixmap(QtGui.QPixmap(":/others/pynocchio.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
+        NotFoundDialog.setWindowIcon(icon)
+        NotFoundDialog.setLocale(QtCore.QLocale(QtCore.QLocale.English, QtCore.QLocale.UnitedStates))
+        NotFoundDialog.setModal(True)
+        self.verticalLayout = QtWidgets.QVBoxLayout(NotFoundDialog)
+        self.verticalLayout.setObjectName("verticalLayout")
+        self.not_found_text_label = QtWidgets.QLabel(NotFoundDialog)
+        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Expanding)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.not_found_text_label.sizePolicy().hasHeightForWidth())
+        self.not_found_text_label.setSizePolicy(sizePolicy)
+        self.not_found_text_label.setAlignment(QtCore.Qt.AlignCenter)
+        self.not_found_text_label.setObjectName("not_found_text_label")
+        self.verticalLayout.addWidget(self.not_found_text_label)
+        self.horizontalLayout = QtWidgets.QHBoxLayout()
+        self.horizontalLayout.setObjectName("horizontalLayout")
+        self.button_close = QtWidgets.QPushButton(NotFoundDialog)
+        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Maximum, QtWidgets.QSizePolicy.Fixed)
+        sizePolicy.setHorizontalStretch(0)
+        sizePolicy.setVerticalStretch(0)
+        sizePolicy.setHeightForWidth(self.button_close.sizePolicy().hasHeightForWidth())
+        self.button_close.setSizePolicy(sizePolicy)
+        icon1 = QtGui.QIcon()
+        icon1.addPixmap(QtGui.QPixmap(":/icons/icons/edit-delete.svg"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
+        self.button_close.setIcon(icon1)
+        self.button_close.setDefault(True)
+        self.button_close.setFlat(False)
+        self.button_close.setObjectName("button_close")
+        self.horizontalLayout.addWidget(self.button_close)
+        self.verticalLayout.addLayout(self.horizontalLayout)
+
+        self.retranslateUi(NotFoundDialog)
+        self.button_close.clicked.connect(NotFoundDialog.close)
+        QtCore.QMetaObject.connectSlotsByName(NotFoundDialog)
+
+    def retranslateUi(self, NotFoundDialog):
+        _translate = QtCore.QCoreApplication.translate
+        NotFoundDialog.setWindowTitle(_translate("NotFoundDialog", "File not found"))
+        self.not_found_text_label.setText(_translate("NotFoundDialog", "The file was not found"))
+        self.button_close.setText(_translate("NotFoundDialog", "Close"))
+
+from . import main_window_view_rc

tox.ini

@@ -12,7 +12,7 @@ commands =
 [testenv:flake8]
 basepython=python
 deps=flake8
-commands=flake8 pynocchio --exclude=.git,__pycache__,pynocchio/uic_files/go_to_page_dialog_ui.py,pynocchio/uic_files/main_window_view_rc.py,pynocchio/uic_files/preference_dialog_ui.py,pynocchio/uic_files/bookmark_manager_dialog_ui.py,pynocchio/uic_files/about_dialog_ui.py,pynocchio/uic_files/main_window_view_ui.py,pynocchio/uic_files/style_rc.py
+commands=flake8 pynocchio --exclude=.git,__pycache__,pynocchio/uic_files/go_to_page_dialog_ui.py,pynocchio/uic_files/main_window_view_rc.py,pynocchio/uic_files/preference_dialog_ui.py,pynocchio/uic_files/bookmark_manager_dialog_ui.py,pynocchio/uic_files/about_dialog_ui.py,pynocchio/uic_files/not_found_dialog_ui.py,pynocchio/uic_files/main_window_view_ui.py,pynocchio/uic_files/style_rc.py
 
 [testenv]
 setenv =